The Moon is slowly moving away from the Earth at a rate of about 4 centimeters a year. In one billion years the Moon will be 40,000 kilometers farther away from the Earth than
it is today. How will this affect the tides of Earth. Use your notes for reference.

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.